Loudspeaker



FIG. 1 is a, right, top perspective view of the loudspeaker showing my new design;

FIG. 2 is a front, top perspective view thereof;

FIG. 3 is a back, left, top perspective view thereof; and,

FIG. 4 is a front, right, top perspective view thereof. 

The ornamental design for a loudspeaker, as shown and described. 